Service jack



FIG. 1 is a front perspective view of the service jack as show in FIG. 1;

FIG. 2 is a top view of the service jack as shown in FIG. 1;

FIG. 3 is a bottom view of the service jack as shown in FIG. 1;

FIG. 4 is a right side view of the service jack as shown in FIG. 1; the left side being a mirror image thereof;

FIG. 5 is a rear view of the service jack as shown in FIG. 1; and,

FIG. 6 is a front view of the service jack as shown in FIG. 1.

The broken lines shown in the figures are for the purpose of illustrating portions of the service jack and form no part of the claimed design. 

CLAIM The ornamental design for a service jack, as shown and described. 